Heel-breasting machine.



R. G. SIMMONS.

HEEL BRBASTING MACHINE.

APPLIUATION FILED Nov. 19, 1910.

1,080,376. Patented Dec. 2, 1913.

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RALPH C. SIMMONS, OF BEVERLY, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOEMACHINERY COMPANY, 0F PATERSON, NEW JERSEY, .A CORPORATION OlE NEWJERSEY.

HEEL-BREASTING MACHINE.

Specification of Letters Patent.

Patented Dec. 2,1913.

To all whom t may concern:

Be it known that l, RALPH C. SIMMONS, a citizen of the United States,residing` at Beverly, in the county of Essex and State of Massachusetts,have invented certain lmprovements in Heel-Breasting Machines, of whichthe following description, in connection with the accompanying drawings,is a specification, like reference characters on the drawings indicatinglike parts in the several figures.

This invention relates to shoe machinery and particularly to heelbreasting machines.

After the attachment of the heel to the shoe by the heel nailingmachine, it is customary to eut oft' squarely and evenly the forwardface of the heel, this operation being known as heel brcasting. Thisoperation is, however, sometimes performed upon the heel before it isattached to the shoe. The heel breasting knife and the shoe are usuallyrelatively positioned with the knife edge at right angles to thelongitudinal median line o-f the heel, that is, with its edge extendingsquarely across the heel. It is often. desirable, however, to breastheel rights and lifts by relatively positioning the knife edge and thelongitudinal median line of the heel at oblique angles to each other. Inthis case the knife and longitudinal median line are usually so inclinedthat the side of the heel which becomes the inside when worn is breastedlonger and the opposite side shorter upon each shoe. To accomplish thisit has been the custom to move the shoe relatively to the knife whilethe knife is mounted to reciprocate in a fixed plane. By this invention,however, the shoe is held in a fixed position relatively to the machineframe and the knife is mounted for reciprocation and also for angularpositioning movement about an axis lying in the direction of itsreciprocativc movement. This oscillatory positioning movement enablesthe knife to be placed at the desired angles to a fixed line extendingtransversely of the machine fraine and hence also to the longitudinalmedian lines of the shoe heels for breasting heel rights and let'ts.Adjustable stops are provided so that the magnitude of the angles may bevaried for different pairs and made equal but opposite for the shoes ofa pair.

Another feature of my invention involves i the provision of resilientmeans for retaining the knife at either limit of its oscillatorypositioning movement.

Upon the knife carrier a shaft is mounted for partial rotation oroscillation about a vertical axis and to the lower end of the shaft theknife clamping means is attached. Upon the shaft above its support issecured a collar having an arm provided with a downwardly projectingportion adapted to engage rigid but adjustable abutments carried by thcshaft support. Upon the upper end of the shaft is an elongated sleevehaving two .longitudinal ribs which form between them a way adapted toreceive the rounded end of an arm extending from a rock-shaft mounted onthe frame and arranged to be rotated by a knee lever locatedconveniently for the operator. Movement of the rock-shaft swings the armand causes its cud t0 press against one or the other of the ribs on thesleeve, which pressure rocks or rotates the vertical shaft until stoppedby one or the other of the rigid adjustable abutmcnts. The resilientmeans for holding the knife against'y either stop comprises a Ushapedspring having one end wrapped about a pin on the machine frame and theother wrapped about a pin on a short arm extending from a rock-shaft.Rocking of the shaft carries the pin on the short arm to one side or theother of a line joining the pin on the frame and tl i. axis of therockshaft and the pressure of the spring, which tends to separate thepins, holds the rock shaft and hence the knife carrying shaft at one orthe other of its limits of oscillation.

Referring now to the drawings-Figure l is a side elevation of a heelbrcasting machine provided with my improvement; Fig. 2 is a perspectiveview showing in detail the parts of the machine embodying my invention.

Referring to Fig. l, Q :is the main frame of the machine. rl`he knifecarrier lis mounted for vertical rcciprocation in the upper portion ofthe frame by flanges which engage suitable ways in the frame Q, Fig. 2.The knife carrier is counter-balanced by a, spring 8 and is reciprocatedby connections (not shown) with an actuator l() which is reciprocatmladjacent to the carrier by a connecting rod 12 attached to a crank llton the power driven shaft of the machine which is actuated through aonerevolntion clutch .mechanism of the usual Horton type which istripped by pressure on the treadle 16. The shoe is supported with itsheel beneath a presser plate 18 by a jack of a usual type. The pressureplate 18 is actuated by the same treadle which trips the clutch, theclutch being actuated only when the treadle approaches the lower limitof its movement. Connection from the treadle to the presser plate isestablished through the usual slide 20 carrying the plate 18, the lever22 pivoted at 24, and the rod 26 connected to the treadle, and, throughthe spring 28, to the lever 22 so that pressure on the treadle firstacts to depress the plate 18 resiliently upon the heel and then to tripthe clutch whereupon the crank 14 draws down the actuator 10 and theknife carrier 4 to force the knife 8O through the heel until thebreasting stop or bunter 32 comes in contact with the shank of the shoe.When this occurs the connection between the actuator 10 and the knifecarrier 4 is broken and further travel of the knife stopped.

Upon the upper end of the knife carrier 4 is an extension 86 in which isrotatably mounted in a vertical position a shaft 38. Upon the shaftbelow its support 36 is rigidly mounted the upper portions of a knifeclamp 40. rlhe knife clamp has forwardly projecting arms 42 whichembrace the knife. ln front of the knife and behind the ends of the armsis a clamping plate 44 provided with clamping screws 46. When the screwsare turned in against the knife it is forced back against the body ofthe clamp and the ends of the plate 44 are brought forward against thearms 42; in this way the knife is firmly clamped in place. Verticaladjustment of the knife is provided for by screws 48. To limit therotative movement @fthe shaft 38 and of the knife, a collar 50 is fixedto the shaft above the support 36 and is provided with an arm havling a.depending portion 52 which lies in position to engage one or the otherof two screws 54 which are threaded through lugs 56 on the support orextension 36 on the knife slide or carrier. Above the collar 50 is asleeve 60 which is provided with longitudinally extending ribs 62forming a way or groove between them. ln the groove Vlies the roundedend of an arm 64, the other end of which is iiXed to a rock-shaft 66.The shaft 66 is mounted in suitable bearings 68 on the machine frame andat its lower end is provided with an arm 70 having a knee or legengaging portion 72. Mounted on the shaft 66 above the middle bearing 68is a short arm 74 carrying a pin 76 located opposite a pin 78 on theframe. A U-shaped spring 86 has its ends wrapped about the pins andtends to separate them. 'W hen the pin 76 is in line with the pin78 andthe shaft 66, the spring has no tendency to rotate the shaft, but whenthe said pin is displaced out of said line by rotation of the shaft 66and swinging lof the arm 74, the spring tends to rotate the shaft in onedirection or the other according to the side of the line upon. which itsend, carrying the pin 7 6, is displaced.

The longitudinal median line 'of` the shoe heel, extending from front toback of the heel, is positioned relatively to a fixed line on themachine. perpendicular to a line extending transversely of the machinesubstantially parallel with the front edge of the presser plate 18.rl"he knife is then adjusted to be oscillated to positions in which itmakes equal angles with the fixed line, on the machine.

The parts of the machine are shown, Fig. 2, in position for breastingleft heels, the

For instance it is placed-v knife being in position to make a cut alongtheline a, so as to make the inside corner of the heel extend fartherforward toward the ball than the outside cornenthus providing a moreextended support for the` arch of the foot. lWhen a right shoe is to bebreasted the operator swings the arm 70 to the left with his knee tocarry the arms 74 and 64 in the same direction and move the pin 76 tothe other side of the line joining the pin 78 and the axis of the shaft66, so that the spring 8O will tend to continue the rotation of theshaft 66, and, through the arm 64 and grooved collar 60, to continue theoscillation of the knife carrying shaft 38 until the depending stop arm52 contacts with the forward limiting screw 54. rlhe knife is then inposition to cut along the line Z; for breasting a right heel. rlhetreadle is now depressed to bring the presser foot 18 down on the heeland the shoe heel properly adjusted relatively to the edge of the plate18. rEhe Vtreadle is then further depressedto throw in the clutch,whereupon the knife descends and breasts the heel, stoppingautomatically when the stop 32 engages the shank. During the downwardmovement of the knife, its carrier and attached parts, the end of thelever 64 slides along the groove formed by the ribs 62 on the collar 60.This sliding connection enables the spring 80 to maintain the knife inits proper position at -an angle to the median line of the heel, and thestop arm 52 against its stop screw during the reciprocating movement ofthe knife. Y

Having described my invention, what l claim as new and desire to secureby Letters latent of the United States is 1. ln aheel breasting machine,a breasting knife mounted for reciprocation and for positioning'movementabout its longitudinal axis and means tending to maintain the knifeyieldingly in either of two positions of movement about said axis.

2. ln a heel breasting machine, the combination of means for supportinga shoe in i lio position to be operated upon, a breasting knife, meansto reciprocate the knife longitudinally to do its work, means permittingadjustment of said knife about its longitudinal axis, and means tendingto maintain the knife yieldingly in one or the other of two positions ofadjustment about said axis.`

3. In a machine of the class described, an operating tool adapted forangular adjustment, means for limiting such adjustment in oppositedirections, a rocker for effecting such adjustment, and the bent spring80 attached by one end to the rocker and by its other end to a fixedpoint so related to the rocker that said. spring will be repositioned byand with said rocker to maintain the rocker yieldingly at either extremeof its movement alternatively.

4. In a heel breasting machine, the combination with a shoe support, ofan adjustable breasting knife, means for reciprocating said knife in oneplane and then upon adjustment in another' plane, said planes makingoblique angles with a fixed horizontal line, and yielding means fornormally maintaining` the knife alternatively in either of said planesat will.

5. In a heel breasting machine, a breasting knife, means to reciprocatesaid knife in a direction approximately perpendicular to the plane ofthe top lift, means for adjusting said knife into a plurality ofpositions such that the planes generated by the knife edge in itsreciprocation are equally but oppositely inclined to a fixed verticalplane, manually operated means for shifting the knife from one posit-ionto the other, and means acting automatically to hold the knife in eitherposition.

G. A. heel breasting machine, having in combination, a shoe support, aknife slide, power means for actuating the slide, a knife carrierpivotally mounted in the knife slide for movement about the longitudinalaxis of the knife, means under the control of the operator for turningsaid knife carrier, a movable presser plate, and means for depressingthe plate upon the Work prior to the actuation of the knife.

7. A heel breast-ing machine, having in combination, a shoe support, amovable presser plate adapted to engage the tread surface of the heel ofa shoe, aknife slide, means for actuating the slide, a knife carrierpivotally mounted on the knife slide for movement about the longitudinalaxis of the knife, and manual means for positioning and holding saidknife carrier angularly to said presser plate in a plurality ofpredetermined positions.

8. A heel breasting machine, having in combination, a shoe support, aknife slide, a knife carrier pivotally mounted on the knife slide, meansunder the control of the operator for turning said knife carrier to alimited extent in either direction, and means for resiliently holdingthe knife in either limiting' position of rotation.

9. In a machine of the class described, a reciprocating knife slidehaving' a projecting portion, a knife carrier mounted rotatably in saidportion, means for limiting rotative movement of the knife carrier, ribson the knife carrier forming between them a slot or way, a rock-shaftmounted upon the machine frame and. provided with a knee lever, an armon said rock-shaft arranged with its free end lying between said ribs,and a spring for holding said. knife carrier at either limit of itsrotative movement.

10. In a machine of the class described, a reciprocating knife slide, ashaft journaled m said slide, a knife clamp mounted on said shaft, astop arm fixed on the shaft and adapted to engage stops on the knifeslide, a sleeve on said shaft having longitudinal ribs, a rock-shaftmounted on the machine frame, a knee lever and an arm on saidrock-shaft, the end of said arm lying between the ribs on said sleeve.

11. In a heel breasting machine the combination of the knife slide (3,the knife earrying shaft 38 mounted therein, the grooved member G() onsaid shaft, the rock-shaft (3G, the arm (311 thereon engaging saidgrooved member, the pin TS on the machine frame, the arm 7-1 on therock-shaft carrying the pin 76 normally out of line with the pin 78 andthe rock-shaft, the spring 80 for holding said arm 74 in normalposit-ion, knife shaft limiting means 52, `5-l, and an operating arm onthe rock-shaft.

In testimony whereof I have signed my name to this specification in thepresence of tivo subscribing witnesses.

RALPH C. SIMMONS.

Vitnesses CHns'rnn F. Rooms, LAURA M. Goonnmsn.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

